The Champion Ankle Support provides comfortable uniform compression over the affected area while helping to permit continued activity without binding or cutting. Absorbs perspiration for all-day wearing comfort. Slips on like a sock, fits either the left or right ankle. Product Features Elastic, cotton-rayon blend fabric provides firm support; helps improve circulation to promote healing Absorbs perspiration for all day wearing comfort Figure-8 design conforms to the anatomy around the ankle joint Encircles the ankle like a bandage but without the bulk Fits easily inside shoes For mild sprains and strains or weak, tender ankles. Encircles the ankle like a bandage but without the bulk. Measure around the smallest part of the ankle; Small fits 7.0-8.0” (17.8-20.3cm) Medium fits 8.25-9.0” (21.0-22.9cm) Large fits 9.25-10.0” (23.5-25.4cm) X-Large fits 10.25-11.0” (26.0-27.9cm)